View clinical trials related to Respiratory Infections, Acute.
Filter by:Respiratory syncytial virus (RSV) causes sickness and deaths in older people every winter. This study will investigate how aging affects the body's immune response (body's response to disease) to RSV. About 2000 people, age 21 and older, who reside in the upstate NY area, will be recruited. Two groups of subjects will be studied. The 1st group of volunteers will be recruited prior to the start of RSV season in year 1 of the study. These volunteers will include healthy people and people with various medical conditions. The 2nd group of volunteers will be patients admitted to Rochester General Hospital for acute respiratory illness. Procedures will include drawing blood from a vein in the arm (2 tablespoons), collecting nasal swabs, and collecting sputum. Volunteers may participate in study related procedures for up to 3 years.
This study is designed to assess the causes and impact of acute respiratory illness (common colds, flu, bronchitis, pneumonia) in adults age 65 and older. One of the ways to determine the virus causing a particular illness is to get a blood specimen when a person is sick and again later and look for the body's specific responses that identify the virus. Approximately 3000 subjects will be evaluated and their medical records assessed for details of recent illness and general health to help in understanding the subjects' current illness.
Undernutrition in children less than five years of age is common throughout sub-Saharan Africa. Nutritional deficiencies may lead to less ability to fight infectious diseases. The purpose of this study is to determine whether zinc supplements plus standard antibiotics reduce the length of hospitalization in children with pneumonia. Six hundred children aged 6-36 months diagnosed with pneumonia and admitted to Muhimbili National Hospital (MNH), Dar es Salaam, Tanzania, will participate in this study. Half of the children will receive daily supplements of zinc, and the other half will receive placebo tablets (dummy pills containing no medication). Each child will be followed for 6 weeks after hospital discharge to check for recovery from the illness. All children in both groups will receive antibiotics and supportive care to manage pneumonia, according to the standards of care at MNH and Amana Municipal Hospital in accordance with the Recommendations of the Ministry of Health, Tanzania.
The purpose of this study is to measure the immune response (how the body fights infection) to an experimental preparation of live Respiratory Syncytial Virus (RSV). A better understanding of this virus may be useful in development of vaccines and treatments. Participants will include 20 healthy adults age 21-40. Study procedures will include drawing blood, urine samples, respiratory exams, vital signs and temperature, diary cards, nasal mucus weight and nasal washes and swabs. All participants will receive vaccine via nose drops. Patients will participate in the study for about 2 months.